Photographic-plate-developing apparatus.



PATENTED JULY 7 G. A. HAGNER.

PHOTOGRAPHIG PLATE DEVELOPING APPARATUS.

APPLICATION FILED AUG. 13, 1902.

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G. A. HAGNER.

PHOTOGRAPHIG PLATE'DEVELOPING APPARATUS.

APPLICATION FILED AUG. 13, 1902.

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No. 733,034. PATENTED JULY 7, 1903'. G. A. HAGNER.

PHOTOGRAPHIG PLATE DEVELOPING APPARATUS.

APPLICATION TILED AUG. 13, 1902.

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Patented July '7, 1903.

PATENT OFFICE.

GUSTAVE A. HAGNER, OF MERIDEN, CONNECTICUT.

PHOTOGRAPHlC-PLATE-DEVELQPING APPARATUS.

SPECIFICATION formingpart Of LettersPatent No. 733,034, dated July '7, 1903.

Application filed August 13, 1902.

To all whom it may concern.-

Be it known that I, GUSTAVE ALHAGNER, a citizen of the United States; residing at Meriden, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Photographic- Plate-Developing Apparatus; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of refer-' ence marked thereon, which form a part of this specification.

This invention relates to improvements in apparatus for developing photographic plates; and it consists in certain novel features of construction and arrangement of parts, which will be more fully hereinafter set forth in the following specification and pointed out in the claim.

The object of this invention is to produce a compact port-able apparatus for developing photographic plates .after exposure which shall be simple in construction, cheap to manufacture, and efficient in operation.

Figure 1, Sheet 1, is a view of the device in longitudinal section, taken on line as a; of Fig. 2, Sheet 2; and Fig. 2, Sheet 2, is a view of a transverse section of the device, taken on line we; of Fig. 1, Sheet 1. Figs. 3 and 4, Sheet 2, are detached views'in elevation of the sheave and frame which form a part of the bath-elevating device. Fig. 5, Sheet 3, is a view in section of a detached portion of the device, which I term the plate-carrier. Fig. 6, same sheet, is a view of a detached portion, illustrating the manner of swinging the plate-carrier to facilitate the removal of the plate from the device after being developed. Fig. 7 is an enlarged detached View of the peep-tube. Fig. 8, Sheet 4, is a view in elevation of the elevator-actuating shaft. Fig. 9, same sheet, is an end view of the same device. Fig. 10 is a front elevation of.the elevator-car with the bath-receptacle shownin dotted lines. Fig. 11 is a cross-section of the car, takenon line Z Z, the bath-receptacles being shown in position and also in section.

Similar letters and figures of reference de- Serial No. 1 19,5 10. (No model.)

note the same parts throughoutthe entire views.

In Fig. 1, Sheet 1, A represents the outer shell, or wallsyof the case, or cabinet, which contains the working mechanism. 1 is a shelf projecting transverselyinto the case and forms a support for the plate-holder 2 when in the proper position to begin the operation of developing a plate. The plate-holder 2 is identical with the one shown by me in a prior ap- -mensions than the plate to be operated on.

Plates 6 6 are shown in their normal positions in the plate-holder 2, one of them being shown at the instant of ejection in dotted lines, as at 7, and again supported in the plate-carrier, as at 8, it being also shown in dotted lines in this position. An aperture or slot 9 is formed in the top of the case, and a plate 10 is fitted to extend over and com-.

pletely close the same. A spool, or sleeve, 11 is passed through the plate 10, completely filling the aperture through which it passes. A bolt, or stud, 12 passes completely through the length of the spool 11 and is fitted so as to be easily rotated when desired. A cross-piece or yoke 13 is fitted to one end of the bolt 12 and a thumb-nut 14 attached to the other end. A plate 15 is secured to the top of the case A and is provided with a longitudinal slot, as shown at 16. A collar 17 is provided with a depending lug 18, which registers with and fits into the slot 16. A helical spring 19 is confined under tension between the yoke 13 and the spool 11. The top of the collar 17 is provided with an approximately diametrical slot 20, andthe thumb-nut 14 is provided at its lower end with a tongue 21, adapted to register with and fit within the slot 20 of the collar 17. A hook or carrier 22, which may be formed of wire, is secured to the yoke 13 in any well-known and approved manner. Difierent positions assumed by this portion during manipulation are illustrated in dotted lines at 23 and 24, and magnified views of same are shown in Figs. 5 and 6, Sheet 3. A shaft or spindle 25 is mounted transversely in the case, and grooved pulleys 26 26 are rigidly mounted thereon. A cord 27 is attached in any well-known manner to the bottom of the groove 28 in the pulley 26 and passes over the pulley 29 in the case, or frame, 30, which is secured to the side wall of the case A. The cord 27' after passing over the pulley 29 is attached to the elevator-car 31, which is guided in the case A, as shown at 32, Fig. 2, Sheet 2. Trays 33 and 34 are placed side by side in the elevator-car and are adapted to hold the developing liquids. A door 35 is hinged to the case, as at 36, and is shown in open position in dotted lines at 37. A ruby or orange colored glass 38 is fitted into an opening 39 in the door 35, and a flap or shutter 40 is hinged to the door 35 and is of such dimensions as to completely close the opening 39. A plate 41, having an angular hub 42, is provided with a slot 43, passing entirely through the side wall thereof. Atu be 44, havinga flaring mouth at its outer end and a pin adapted to engage with the slot 43 in the aforesaid angular hub 42, is passed entirely through the hub 42 and bears against a flap 45, which is hinged to the inner top wall of the case A and is shown in Fig. 7, Sheet 3. A spring 46 is arranged to bear against the flap and to hold it normallyin a closed position.

The operation of the device is as follows: The plate-holder containing the plate to be developed being placed in position, as shown in the illustrations, the tanks having previously beensupplied with the proper kind and amount of liquids, the slide of the plateholder (which may be of ordinary construc tion, and therefore has not been described in all of its details) is withdrawn, as in ordinary practice, and the plate is ejected from the holder by any suitable mechanism, preferably by that shown and described in my application for plate-holders, Serial No. 113,986,

filed July 1, 1902, where it is caught and re-' tained by the carrier, as shown in Fig. 1,

eye within the flaring mouth of the tube 44,

and by pressing downward the flap 45 will be depressed, when by opening the flap 40 in the door 39 the rays of light which enter through the rubyor orange colored glass will enable the operator to ascertain to a certainty the state, or stage, of the process without admittingany white rays,which,asis Well known, would result disastrously to the work. When satisfied with the development, the shutters, or flaps, are released and allowed to close and the carrier moved to position over the next bath and washed by again raising the elevatorcar containing the baths. When thoroughly rinsed, the bath is lowered and the door 39 opened and the carrier given a quarter-turn, as shown in Fig. 6, when the plate can be easily removed. The case, or cabinet, is then closed, and the plate-holder is reversed and the operation repeated as often as desired.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

In a photographic-plate-developing apparatus, a casing having a slot in its top, a shelf for the plate-holder, a retaining-plate against which the plate-holder is pressed, a carrier, a bolt supporting the carrier, said bolt passing through the sleeve, a spring for holding the carrier normally depressed, a thumb-knob on the bolt, means on the knob for preventing rotation when in certain position, bath-receptacles and means for elevating the bath-receptacles to immerse the plate supported by the carrier, as and for the purpose described.

In testimony whereof I affix my signature in presence of two witnesses.

GUSTAVE A. HAGNER.

Witnesses:

T. M. BYXBEE, J OHN M. BREWER. 

